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Appendix C Register Structure and Format

PCI-1761 User’s Manual 26 Advantech Co., Ltd.

www.advantech.com

Appendix

Appendix C Register Structure and

Format

C.1 Overview

The PCI-1761 is delivered with an easy-to-use 32-bit DLL driver for user

programming under the Windows 95/98/NT/2000 operating system. We

advise users to program the PCI-1761sing the 32-bit DLL driver provided

by Advantech to avoid the complexity of low-level programming by reg-

ister.

The most important consideration in programming the PCI-1761 the reg-

ister level is to understand the function of the card's registers. The infor-

mation in the following sections is provided only for users who would

like to do their own low-level programming.

C.2 I/O Port Address Map

The PCI-1761 requires 32 consecutive addresses in the PC's I/O space.

The address of each register is specified as an offset from the card's base

address. For example, BASE+0 is the card's base address and BASE+7 is

the base address plus seven bytes.

Table C-1 shows the function of each register of the PCI-1761 or driver

and its address relative to the card's base address.

1 2 ... 25 26 27 28 29 30 31 32 33 34 35

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